It can be concerning when a scan at 10 weeks does not show a heartbeat, especially for first-time moms. However, it is important to remember that every pregnancy is different, and there can be various reasons for this situation. In some cases, the gestational age may have been miscalculated, leading to an inaccurate expectation of seeing a heartbeat. Additionally, certain factors such as tilted uterus or positioning of the baby can make it difficult to detect the heartbeat during early stages. It is advisable to consult with your healthcare provider who can provide further guidance and conduct additional tests if necessary. They may suggest waiting for another ultrasound in a few days or weeks to monitor any changes in the pregnancy. While this uncertainty can be distressing, try to stay positive and lean on your support system during this time.